Still troubleshooting my 98 JGC 4.0L 2wd stalling issues...

by jeeplabs - 7/25/09 9:56 AM

In Reply to: Didnt fix it... by jeeplabs

OK, after reading alot on this forum, I decided to troubleshoot the issue again. I cranked my jeep, let it run for a few seconds, walked around to the engine bay and wiggled the PCM around and the motor immediately started stalling and eventually died just like it has been when i was driving it. So, I went up the the auto parts store and bought some electrical cleaner spray for $4.99, took my PCM (which was filthy) out and cleaned all connections on the PCM and the wires that hook into the PCM. I let it dry for 5 minutes then attached the PCM back with washers so the PCM isn't so close to the firewall. So far, it seems to sound better, but then again, it has driven excellent right after one of these stalling episodes, so I know this isnt a sign that the issue is fixed. I'm about to take it on a 40 mile trip. I'll report back if stalls or if it looks like the issue is resolved.

If this doesn't work, ill try either a new PCM or MAP sensor.